{"id":15454,"date":"2026-09-21T02:25:16","date_gmt":"2026-09-21T02:25:16","guid":{"rendered":"https:\/\/www.fhopepack.com\/videos\/?p=15454"},"modified":"2026-10-10T12:17:13","modified_gmt":"2026-10-10T12:17:13","slug":"preventing-telescoping-surface-scratches-and-edge-buckling-engineering-solutions-for-tilting-strapping-and-wrapping-delicate-steel-coils","status":"publish","type":"post","link":"https:\/\/www.fhopepack.com\/videos\/preventing-telescoping-surface-scratches-and-edge-buckling-engineering-solutions-for-tilting-strapping-and-wrapping-delicate-steel-coils\/","title":{"rendered":"Narrow Steel Coil Packing Line: Which Station Stops Telescoping, Surface Scratches and Edge Buckling"},"content":{"rendered":"<blockquote>\n<p><strong>Executive summary<\/strong>\nThis clip shows our packing line for narrow steel coils. Coils travel flat on yellow roller conveyors, a strapping head bands each coil through the eye, a blue orbital ring wraps it eye-through, and a blue gantry lifts and stacks the finished coils. Each station is set up to stop one of the three defects that ruin delicate coils: telescoping, surface scratches and edge buckling.<\/p>\n<\/blockquote>\n<iframe loading=\"lazy\" width=\"1053\" height=\"592\" src=\"https:\/\/www.youtube.com\/embed\/XBgU78aOAag\" title=\"Steel Coil Strapping and Stacking Packaging Line\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<h2 id=\"table-of-contents\">Table of Contents<\/h2>\n<ul>\n<li><a href=\"#video\">What the clip shows<\/a><\/li>\n<li><a href=\"#defects\">Defect prevention by machine station<\/a><\/li>\n<li><a href=\"#strap-count\">Straps per coil<\/a><\/li>\n<li><a href=\"#setup\">What we set per line<\/a><\/li>\n<li><a href=\"#selection-checklist\">Selection checklist<\/a><\/li>\n<li><a href=\"#safety\">Safety<\/a><\/li>\n<li><a href=\"#engineering-faq\">Engineering FAQ<\/a><\/li>\n<li><a href=\"#next-step\">Next step<\/a><\/li>\n<li><a href=\"#related-reading\">Related reading<\/a><\/li>\n<li><a href=\"#sources\">Sources<\/a><\/li>\n<\/ul>\n<h2 id=\"video\">What the clip shows<\/h2>\n<table>\n<thead>\n<tr>\n<th>Step<\/th>\n<th>What you see<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Conveying<\/td>\n<td>Narrow coils lie flat on yellow roller conveyors<\/td>\n<\/tr>\n<tr>\n<td>Strapping<\/td>\n<td>A strapping head drops through the coil eye and bands the coil<\/td>\n<\/tr>\n<tr>\n<td>Wrapping<\/td>\n<td>A blue orbital ring wraps each coil eye-through<\/td>\n<\/tr>\n<tr>\n<td>Stacking<\/td>\n<td>A blue gantry lifts the wrapped coils and stacks them<\/td>\n<\/tr>\n<tr>\n<td>Line<\/td>\n<td>Further conveyors carry stacks to the end of the line<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"defects\">Defect prevention by machine station<\/h2>\n<table>\n<thead>\n<tr>\n<th>Defect<\/th>\n<th>Cause<\/th>\n<th>Station that stops it<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Telescoping<\/td>\n<td>Inner wraps slide out of line in handling<\/td>\n<td>Radial straps through the eye lock the wraps together<\/td>\n<\/tr>\n<tr>\n<td>Surface scratches<\/td>\n<td>Coil faces rub on hard parts or each other<\/td>\n<td>Flat conveying, film wrapping and an eye-gripping gantry<\/td>\n<\/tr>\n<tr>\n<td>Edge buckling<\/td>\n<td>Edge load from slings, forks or hard drops<\/td>\n<td>Coils stay flat and are set down gently on the stack<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"strap-count\">Straps per coil<\/h2>\n<p><strong>Worked example (illustrative).<\/strong> Radial straps are spaced around the coil.<\/p>\n<table>\n<thead>\n<tr>\n<th>Item<\/th>\n<th>Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Coil OD (illustrative)<\/td>\n<td>1,000 mm<\/td>\n<\/tr>\n<tr>\n<td>Outer circumference, 3.14 \u00d7 1,000<\/td>\n<td>about 3,140 mm<\/td>\n<\/tr>\n<tr>\n<td>Target strap spacing (illustrative)<\/td>\n<td>800 mm<\/td>\n<\/tr>\n<tr>\n<td>Straps per coil, 3,140 \u00f7 800 rounded up<\/td>\n<td>4 straps<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"setup\">What we set per line<\/h2>\n<table>\n<thead>\n<tr>\n<th>Setting<\/th>\n<th>Depends on<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Straps per coil<\/td>\n<td>Coil OD and width<\/td>\n<\/tr>\n<tr>\n<td>Strap<\/td>\n<td>PET strap, or steel strap with edge protectors<\/td>\n<\/tr>\n<tr>\n<td>Film<\/td>\n<td>Layers and overlap for rust and dust protection<\/td>\n<\/tr>\n<tr>\n<td>Stacking<\/td>\n<td>Coils per stack and layer pads<\/td>\n<\/tr>\n<tr>\n<td>Contact parts<\/td>\n<td>Covered rollers and gripper pads for the surface finish<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"selection-checklist\">Selection checklist<\/h2>\n<ul>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> Coil OD, ID, width and weight.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> Surface finish: cold rolled, galvanised, stainless.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> Straps per coil.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> Film layers.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> Coils per hour from the slitter.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> Stack height and layer pads.<\/li>\n<\/ul>\n<h2 id=\"safety\">Safety<\/h2>\n<ul>\n<li>Keep clear of the strapping head and wrapping ring while they run.<\/li>\n<li>Stay outside the fenced gantry area.<\/li>\n<li>Lock out before clearing a strap or film jam.<\/li>\n<li>For CE markets, the machine is designed to ISO 12100 and EN 415-10.<\/li>\n<\/ul>\n<h2 id=\"engineering-faq\">Engineering FAQ<\/h2>\n<p>Q: What causes telescoping?\nA: Inner wraps sliding out of line in handling; radial straps through the eye stop it.<\/p>\n<p>Q: How are scratches prevented?\nA: Coils ride flat, get wrapped in film and are picked through the eye, not by the faces.<\/p>\n<p>Q: What causes edge buckling?\nA: Edge loads from slings, forks or hard drops; the line keeps coils flat and sets them down gently.<\/p>\n<p>Q: How many straps per coil?\nA: Circumference divided by strap spacing; 4 straps on a 1,000 mm coil in the worked example.<\/p>\n<p>Q: Does it work for stainless coils?\nA: Yes. We set the strap, film and contact parts to the surface.<\/p>\n<p>Q: Which standards apply?\nA: For CE markets, ISO 12100 and EN 415-10.<\/p>\n<h2 id=\"next-step\">Next step<\/h2>\n<p>We match a narrow coil packing line in three steps:<\/p>\n<ol>\n<li><strong>Submit your layout drawing<\/strong> with coil sizes, weights, surface finish and coils per hour, to <strong>info@fhopepack.com<\/strong>.<\/li>\n<li><strong>Receive a proposal within 48 hours<\/strong> with the machine data and layout.<\/li>\n<li><strong>Book a site survey<\/strong> so we confirm the slitter exit layout.<\/li>\n<\/ol>\n<h2 id=\"related-reading\">Related reading<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.fhopepack.com\/videos\/engineering-design-principles-for-downstream-slit-steel-coil-finishing-balancing-structural-rigidity-and-delicate-coil-protection-during-tilting-and-strapping\/\">Slit Coil Strapping, Wrapping and Stacking Line<\/a><\/li>\n<li><a href=\"https:\/\/www.fhopepack.com\/videos\/technical-architecture-turnstile-integrated-slit-coil-strapping-machine\/\">Turnstile Slit Coil Strapping Machine<\/a><\/li>\n<li><a href=\"https:\/\/www.fhopepack.com\/videos\/next-generation-steel-coil-packaging-solutions-integrated-stretch-wrapping-and-stacking-technology\/\">Slit Coil Stretch Wrapping and Stacking Line<\/a><\/li>\n<li><a href=\"https:\/\/www.fhopepack.com\/Automatic-Coil-Packing-Line\/slit-coil-packing.html\">Slit coil packing line<\/a><\/li>\n<\/ul>\n<h2 id=\"sources\">Sources<\/h2>\n<ul>\n<li>Machine content: FHOPE engineering team, 2026-10-10<\/li>\n<li>Clip: <a href=\"https:\/\/www.youtube.com\/watch?v=XBgU78aOAag\">the video on YouTube<\/a><\/li>\n<li>Straps per coil: our worked example, illustrative values<\/li>\n<li>Standards scope: ISO 12100:2010; <a href=\"https:\/\/www.nen.nl\/en\/nen-en-415-10-2014-en-191845\">EN 415-10:2014<\/a><\/li>\n<li>Proposal timing: approved house CTA (proposal within 48 hours)<\/li>\n<\/ul>\n<p><strong>Last reviewed:<\/strong> 2026-10-10<\/p>","protected":false},"excerpt":{"rendered":"<p>Executive summary This clip shows our packing line for narrow steel coils. Coils travel flat on yellow roller conveyors, a strapping head bands each coil through the eye, a blue orbital ring wraps it eye-through, [&hellip;]<\/p>","protected":false},"author":4,"featured_media":15321,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Narrow Coil Packing Without Telescoping or Scratches","_seopress_titles_desc":"Our narrow steel coil line straps, wraps and stacks coils so they do not telescope, scratch or buckle at the edge: which station prevents which 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